add setup snapshot to install packages into snapshot (#260)

allow role to work with gather_facts: false (#262)

Allow the role to work if the playbook has set gather_facts: false.
The gather_subset: min includes all of the facts used by this
role. Other roles may need to gather more facts.
The role gathers the facts where they are needed. Other roles may
need to gather facts in a different place.

add xfsprogs for non-cloud-init systems (#263)

• add xfsprogs for el8

• add xfsprogs for non-cloud-init systems

There should be an explicit dependency on the xfsprogs packages.
The role works in CI because the CI systems are using cloud-init
based VMs which pull in xfsprogs. On non-cloud-init systems the
package is missing and the role fails.